Messages posted to the main thread are handled by dangling pointers to destroyed endpoints after the tests end. Bug: None Change-Id: I901d63bf11574882d0259cd4b07e628f6a4eebc5 Reviewed-on: https://webrtc-review.googlesource.com/84540 Reviewed-by: Taylor Brandstetter <deadbeef@webrtc.org> Commit-Queue: Qingsi Wang <qingsi@google.com> Cr-Commit-Position: refs/heads/master@{#23691}